| Petrophyes brachycaulon | Monanthes brachycaulos (Webb & Berthel.) Lowe |
| Petrophyes minima | Monanthes minima (Bolle) Christ |
| Petrophyes muralis | Monanthes muralis (Webb ex Bolle) Hook.f. |
| Petrophyes pallens | Monanthes pallens (Webb ex Christ) Christ |
| Petrophyes polyphyllum | Monanthes polyphylla Haw. |